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A library that reduces the boilerplate code required to define beans.

Project description

QuickBean is a library that reduces the boilerplate code required to define beans.

Installation

Here is how to install QuickBean :

pip install quickbean

Starting with QuickBean

Suppose you have defined the following bean :

>>> class MyObject(object):
>>>     def __init__(self, my_property, my_other_property):
>>>         self.my_property = my_property
>>>         self.my_other_property = my_other_property

If you would like your bean to have a human-readable representation, you have to override the __repr__ method :

>>> class MyObject(object):
>>>     def __init__(self, my_property, my_other_property):
>>>         self.my_property = my_property
>>>         self.my_other_property = my_other_property
>>>
>>>     def __repr__(self):
>>>         return 'MyObject(my_property=%s, my_other_property=%s)' % (self.my_property, self.my_other_property)

If you would like your bean to be equality comparable, you also have to override the __eq__ and __ne__ methods :

>>> class MyObject(object):
>>>     def __init__(self, my_property, my_other_property):
>>>         self.my_property = my_property
>>>         self.my_other_property = my_other_property
>>>
>>>     def __repr__(self):
>>>         return 'MyObject(my_property=%s, my_other_property=%s)' % (self.my_property, self.my_other_property)
>>>
>>>     def __eq__(self, other):
>>>         return other.__class__ is MyObject and other.__dict__ == self.__dict__
>>>
>>>     def __ne__(self, other):
>>>         return not self.__eq__(other)

Although there is nothing difficult here, it would be better if this boilerplate code could be automatically generated for you. This is exactly what QuickBean brings to you :

>>> import quickbean
>>>
>>> @quickbean.AutoBean()
>>> class MyObject(object):
>>>     def __init__(self, my_property, my_other_property):
>>>         self.my_property = my_property
>>>         self.my_other_property = my_other_property

You may even let QuickBean generate the __init__ method for you :

>>> import quickbean
>>>
>>> @quickbean.AutoInit('my_property', 'my_other_property')
>>> @quickbean.AutoBean()
>>> class MyObject(object):
>>>     pass

Documentation

See the online documentation for more information on how to use QuickBean.

Changelog

QuickBean 1.1

This release breaks compatibility with QuickBean 1.0. See below for more information.

Here are the changes from QuickBean 1.0 :

  • Renaming the AutoJson decorator to AutoToJson (breaks compatibility).
  • Implementation of the AutoInitFromJson decorator.
  • Ability to define custom JSON types to encode and decode properties.
  • Making the _to_json conversion method consistent with JSON types (breaks compatibility).

QuickBean 1.0

First release of QuickBean.

Project details


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